公开(公告)号：US20160166975A1

公开(公告)日：2016-06-16

申请号：US14902670

申请日：2014-07-04

Applicant: BASF SE

Inventor： Georg SIEDER ,  Iven CLAUSEN ,  Javier GARCIA PALACIOS ,  Gustavo Adolfo LOZANO MARTINEZ

IPC: B01D53/14

CPC classification number: B01D53/1425 ,  B01D53/1418 ,  B01D53/1456 ,  B01D53/1493 ,  B01D2252/204 ,  B01D2252/20426 ,  B01D2257/404 ,  B01D2258/0283 ,  B01D2259/804

Abstract: A process for separating off acid gases from a nitrogen oxide-comprising fluid stream, wherein a) the fluid stream is brought into contact in an absorption zone with an aqueous absorbent which comprises at least one amino group-comprising compound, wherein a deacidified fluid stream is obtained, b) the deacidified fluid stream is brought into contact in at least one scrubbing zone with an aqueous scrubbing liquid and a de-aminated deacidified fluid stream is obtained, wherein the scrubbing liquid is recycled via at least one scrubbing zone, c) overflow from the at least one scrubbing zone is treated with UV light, and d) the UV-treated overflow is combined with the absorbent. The process permits the efficient degradation of the nitrosamines present in the absorbent.

Abstract translation: 一种用于从含氮氧化物的流体物流中分离出酸性气体的方法，其中a）使所述流体物流与含有至少一种含氨基化合物的含水吸收剂在吸收区中接触，其中脱酸流体流 b）使脱酸的流体物流与至少一个洗涤区域与含水洗涤液接触，并且获得脱氨化的脱酸流体物流，其中所述洗涤液体经由至少一个洗涤区域再循环，c） 用UV光处理来自至少一个洗涤区的溢流，以及d）将经UV处理的溢流与吸收剂结合。 该方法允许存在于吸收剂中的亚硝胺的有效降解。

公开(公告)号：US20190126194A1

公开(公告)日：2019-05-02

申请号：US16306784

申请日：2017-06-08

Applicant: BASF SE

Inventor： Thomas INGRAM ,  Gustavo Adolfo LOZANO MARTINEZ ,  Alexander PANCHENKO ,  Martin ERNST

IPC: B01D53/14 ,  C10L3/10

Abstract: 1,3-Diaminocyclohexanes of the general formula (I) are suitable for removing carbon dioxide from fluid streams where the radicals R are each, independently of one another, C1-4-alkyl; and n is an integer from 0 to 3. The amino groups of the 1,3-diaminocyclohexane are preferably arranged in trans position relative to one another in the plane of the cyclohexane ring. Absorption media for removing carbon dioxide from fluid streams comprise a) a 1,3-diaminocyclohexane of the general formula (I) and b) optionally at least one tertiary amine and/or a sterically hindered primary or secondary amine. In a process for removing carbon dioxide from fluid streams, the absorption medium is brought into contact with a fluid stream.

公开(公告)号：US20170282116A1

公开(公告)日：2017-10-05

申请号：US15506646

申请日：2015-08-20

Applicant: BASF SE

Inventor： Thomas INGRAM ,  Ralf NOTZ ,  Gerald VORBERG ,  Georg SIEDER ,  Gustavo Adolfo LOZANO MARTINEZ ,  Hogo Rafael GARCIA ANDARIA

IPC: B01D53/14 ,  C10L3/12 ,  C10L3/10

CPC classification number: B01D53/1493 ,  B01D53/1425 ,  B01D53/1475 ,  B01D2252/2026 ,  B01D2252/2041 ,  B01D2252/20426 ,  B01D2252/20447 ,  B01D2252/20484 ,  B01D2252/502 ,  B01D2252/504 ,  B01D2252/602 ,  B01D2258/0283 ,  C10L3/104 ,  C10L3/12 ,  C10L2290/541 ,  Y02A50/2342 ,  Y02C10/06

Abstract: An absorbent for removing carbon dioxide from a fluid stream, comprising an aqueous solution a) of an amine of the general formula (I) in which R1, R2 and R3 are each independently selected from C1-4-alkyl and C1-4-hydroxyalkyl; each R4 is independently selected from hydrogen, C1-4alkyl and C1-4-hydroxyalkyl; each R5 is independently selected from hydrogen, C1-4-alkyl and C1-4-hydroxyalkyl; X is OH or NH(CR1R2R3); m is 2, 3, 4 or 5; n is 2, 3, 4 or 5; and o is 0 or 1; and b) at least one activator selected from b1) a sterically unhindered primary amine and/or a sterically unhindered secondary amine; and a carboanhydrase. The absorbent allows rapid absorption of carbon dioxide from fluid streams.